content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one or more
   *  contributor license agreements.  See the NOTICE file distributed with
   *  this work for additional information regarding copyright ownership.
   *  The ASF licenses this file to You under the Apache License, Version 2.0
   *  (the "License"); you may not use this file except in compliance with
   *  the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  
  /**
  * @author Vladimir N. Molotkov, Stepan M. Mishura
  */
  
  package android.org.apache.harmony.security.asn1;
  
  import java.io.IOException;
  
  
  /**
   * This class represents ASN.1 ANY type.
   * 
   * @see http://asn1.elibel.tm.fr/en/standards/index.htm
   */
  
  public class ASN1Any extends ASN1Type {
  
      // default implementation
      private static final ASN1Any ASN1= new ASN1Any();
  
      /**
       * Constructs ASN.1 ANY type
       * 
       * The constructor is provided for inheritance purposes
       * when there is a need to create a custom ASN.1 ANY type.
       * To get a default implementation it is recommended to use
       * getInstance() method.
       */
      public ASN1Any() {
          super(TAG_ANY); // has not tag number
      }
  
      /**
       * Returns ASN.1 ANY type default implementation
       * 
       * The default implementation works with full encoding
       * that is represented as raw byte array.
       *
       * @return ASN.1 ANY type default implementation
       */
      public static ASN1Any getInstance() {
          return ASN1;
      }
  
      //
      //
      // Decode
      //
      //
  
      /**
       * Tests provided identifier.
       *
       * @param identifier - identifier to be verified
       * @return - true
       */
      public final boolean checkTag(int identifier) {
          return true; //all tags are OK
      }
  
      public Object decode(BerInputStream in) throws IOException {
  
          // only read content, doesn't check it
          in.readContent();
  
          if (in.isVerify) {
              return null;
          }
          return getDecodedObject(in);
      }
  
      /**
       * Extracts array of bytes that represents full encoding from BER input
       * stream.
       * 
       * @param in -
       *            BER input stream
       * @return array of bytes
       */
      public Object getDecodedObject(BerInputStream in) throws IOException {
          byte[] bytesEncoded = new byte[in.offset - in.tagOffset];
          System.arraycopy(in.buffer, in.tagOffset, bytesEncoded, 0,
                  bytesEncoded.length);
          return bytesEncoded;
      }
  
      //
      //
      // Encode
      //
      //
  
      public void encodeASN(BerOutputStream out) {
          out.encodeANY();
      }
  
      public void encodeContent(BerOutputStream out) {
          out.encodeANY();
      }
  
      public void setEncodingContent(BerOutputStream out) {
          out.length = ((byte[]) out.content).length;
      }
  
      public int getEncodedLength(BerOutputStream out) {
          return out.length;
      }
  }